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Zhao Z, Zhao Q, Chen H, Chen F, Wang F, Tang H, Xia H, Zhou Y, Sun Y. Role of dendritic cells in MYD88-mediated immune recognition and osteoinduction initiated by the implantation of biomaterials. Int J Oral Sci 2023; 15:31. [PMID: 37532700 PMCID: PMC10397189 DOI: 10.1038/s41368-023-00234-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 05/21/2023] [Accepted: 06/26/2023] [Indexed: 08/04/2023] Open
Abstract
Bone substitute material implantation has become an important treatment strategy for the repair of oral and maxillofacial bone defects. Recent studies have shown that appropriate inflammatory and immune cells are essential factors in the process of osteoinduction of bone substitute materials. Previous studies have mainly focused on innate immune cells such as macrophages. In our previous work, we found that T lymphocytes, as adaptive immune cells, are also essential in the osteoinduction procedure. As the most important antigen-presenting cell, whether dendritic cells (DCs) can recognize non-antigen biomaterials and participate in osteoinduction was still unclear. In this study, we found that surgical trauma associated with materials implantation induces necrocytosis, and this causes the release of high mobility group protein-1 (HMGB1), which is adsorbed on the surface of bone substitute materials. Subsequently, HMGB1-adsorbed materials were recognized by the TLR4-MYD88-NFκB signal axis of dendritic cells, and the inflammatory response was activated. Finally, activated DCs release regeneration-related chemokines, recruit mesenchymal stem cells, and initiate the osteoinduction process. This study sheds light on the immune-regeneration process after bone substitute materials implantation, points out a potential direction for the development of bone substitute materials, and provides guidance for the development of clinical surgical methods.
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Affiliation(s)
- Zifan Zhao
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Qin Zhao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei- MOST) & Key Laboratory of Oral Biomedicine, Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Hu Chen
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Fanfan Chen
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Feifei Wang
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China
| | - Hua Tang
- Institute of Infection and Immunity, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Haibin Xia
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei- MOST) & Key Laboratory of Oral Biomedicine, Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Yongsheng Zhou
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China.
| | - Yuchun Sun
- Center of Digital Dentistry, Faculty of Prosthodontics, Peking University School and Hospital of Stomatology & National Center for Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Research Center of Oral Biomaterials and Digital Medical Devices & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China.
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Dorozhkin SV. There Are over 60 Ways to Produce Biocompatible Calcium Orthophosphate (CaPO4) Deposits on Various Substrates. JOURNAL OF COMPOSITES SCIENCE 2023; 7:273. [DOI: 10.3390/jcs7070273] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
A The present overview describes various production techniques for biocompatible calcium orthophosphate (abbreviated as CaPO4) deposits (coatings, films and layers) on the surfaces of various types of substrates to impart the biocompatible properties for artificial bone grafts. Since, after being implanted, the grafts always interact with the surrounding biological tissues at the interfaces, their surface properties are considered critical to clinical success. Due to the limited number of materials that can be tolerated in vivo, a new specialty of surface engineering has been developed to desirably modify any unacceptable material surface characteristics while maintaining the useful bulk performance. In 1975, the development of this approach led to the emergence of a special class of artificial bone grafts, in which various mechanically stable (and thus suitable for load-bearing applications) implantable biomaterials and artificial devices were coated with CaPO4. Since then, more than 7500 papers have been published on this subject and more than 500 new publications are added annually. In this review, a comprehensive analysis of the available literature has been performed with the main goal of finding as many deposition techniques as possible and more than 60 methods (double that if all known modifications are counted) for producing CaPO4 deposits on various substrates have been systematically described. Thus, besides the introduction, general knowledge and terminology, this review consists of two unequal parts. The first (bigger) part is a comprehensive summary of the known CaPO4 deposition techniques both currently used and discontinued/underdeveloped ones with brief descriptions of their major physical and chemical principles coupled with the key process parameters (when possible) to inform readers of their existence and remind them of the unused ones. The second (smaller) part includes fleeting essays on the most important properties and current biomedical applications of the CaPO4 deposits with an indication of possible future developments.
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Affiliation(s)
- Sergey V. Dorozhkin
- Faculty of Physics, M.V. Lomonosov Moscow State University, Leninskie Gory 1-2, Moscow 119991, Russia
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Liu L, Huang T, Xie Z, Ye Z, Zhang J, Liao H, Yang S, Yang K, Tu M. Liquid crystalline matrix-induced viscoelastic mechanical stimulation modulates activation and phenotypes of macrophage. J Biomater Appl 2023; 37:1568-1581. [PMID: 36917676 DOI: 10.1177/08853282221136580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
Abstract
Accumulating evidence indicates that the mechanical microenvironment exerts profound influences on inflammation and immune modulation, which are likely to be key factors in successful tissue regeneration. The elastic modulus (Em) of the matrix may be a useful adjustable property to control macrophage activation and the overall inflammatory response. This study constituted a series of Em-tunable liquid crystalline cell model (HpCEs) resembling the viscoelastic characteristic of ECM and explored how mechanical microenvironment induced by liquid crystalline soft matter matrix affected macrophage activation and phenotypes. We have shown that HpCEs prepared in this work exhibited typical cholesteric liquid crystal phase and distinct viscoelastic rheological characteristics. All liquid crystalline HpCE matrices facilitated macrophages growth and maintained cell activity. Macrophages in lower-Em HpCE matrices were more likely to polarize toward the pro-inflammatory M1 phenotype. Conversely, the higher-Em HpCEs induced macrophages into an elongated shape and upregulated M2-related markers. Furthermore, the higher-Em HpCEs (HpCE-O1, HpCE-H2, HpCE-H1) could coax sequential polarization states of RAW264.7 from a classically activated "M1" state toward alternatively activated "M2" state in middle and later stage of cell culture (within 3-7 days in this work), suggesting that the HpCE-based strategies could manipulate the local immune microenvironment and promote the dominance of the pro-inflammatory signals in early stages, while M2 macrophages in later stages. The liquid crystalline soft mode fabricated in this work maybe offer a new design guideline for in vitro cell models and applications.
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Affiliation(s)
- Lichu Liu
- Institute of Orthopedics and Traumatology, 593063Foshan Hospital of Traditional Chinese Medicine, Foshan, China
| | - Tao Huang
- College of Chemistry and Materials Science, 47885Jinan University, Huangpu Road 601, Guangzhou, 510632, P. R. China
| | - Zheng Xie
- College of Chemistry and Materials Science, 47885Jinan University, Huangpu Road 601, Guangzhou, 510632, P. R. China
| | - Zhangyao Ye
- College of Chemistry and Materials Science, 47885Jinan University, Huangpu Road 601, Guangzhou, 510632, P. R. China
| | - Jiaqing Zhang
- Department of Biochemistry and Molecular Biology, School of Preclinical Medicine, 47885Jinan University, Guangzhou, China
| | - Honghong Liao
- Institute of Orthopedics and Traumatology, 593063Foshan Hospital of Traditional Chinese Medicine, Foshan, China
| | - Shenyu Yang
- College of Chemistry and Materials Science, 47885Jinan University, Huangpu Road 601, Guangzhou, 510632, P. R. China
| | - Kuangyang Yang
- Institute of Orthopedics and Traumatology, 593063Foshan Hospital of Traditional Chinese Medicine, Foshan, China
| | - Mei Tu
- College of Chemistry and Materials Science, 47885Jinan University, Huangpu Road 601, Guangzhou, 510632, P. R. China
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Xie L, Wang G, Wu Y, Liao Q, Mo S, Ren X, Tong L, Zhang W, Guan M, Pan H, Chu PK, Wang H. Programmed surface on poly(aryl-ether-ether-ketone) initiating immune mediation and fulfilling bone regeneration sequentially. Innovation (N Y) 2021; 2:100148. [PMID: 34557785 PMCID: PMC8454576 DOI: 10.1016/j.xinn.2021.100148] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/26/2021] [Indexed: 12/22/2022] Open
Abstract
The immune responses are involved in every stage after implantation but the reported immune-regulated materials only work at the beginning without fully considering the different phases of bone healing. Here, poly(aryl-ether-ether-ketone) (PEEK) is coated with a programmed surface, which rapidly releases interleukin-10 (IL-10) in the first week and slowly delivers dexamethasone (DEX) up to 4 weeks. Owing to the synergistic effects of IL-10 and DEX, an aptly weak inflammation is triggered within the first week, followed by significant M2 polarization of macrophages and upregulation of the autophagy-related factors. The suitable immunomodulatory activities pave the way for osteogenesis and the steady release of DEX facilitates bone regeneration thereafter. The sequential immune-mediated process is also validated by an 8-week implementation on a rat model. This is the first attempt to construct implants by taking advantage of both immune-mediated modulation and sequential regulation spanning all bone regeneration phases, which provides insights into the fabrication of advanced biomaterials for tissue engineering and immunological therapeutics. A programed surface is designed and fabricated for immune-mediated osteogenesis The degradation of PTMC coating enables a sequential release of IL-10 and DEX Initially, osteoimmunomodulation is achieved by IL-10 and a small amount of DEX Afterwards, sustained release of DEX fosters the peri-implant bone regeneration
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Affiliation(s)
- Lingxia Xie
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Guomin Wang
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Yuzheng Wu
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China.,Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Qing Liao
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Shi Mo
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Xiaoxue Ren
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Liping Tong
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Wei Zhang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Min Guan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Haobo Pan
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
| | - Paul K Chu
- Department of Physics, Department of Materials Science and Engineering, and Department of Biomedical Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China
| | - Huaiyu Wang
- Center for Human Tissues and Organs Degeneration, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
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Koppe C, Hoene A, Walschus U, Finke B, Testrich H, Pohl C, Brandt N, Patrzyk M, Meichsner J, Nebe B, Schlosser M. Local Inflammatory Response after Intramuscularly Implantation of Anti-Adhesive Plasma-Fluorocarbon-Polymer Coated Ti6AI4V Discs in Rats. Polymers (Basel) 2021; 13:polym13162684. [PMID: 34451224 PMCID: PMC8399026 DOI: 10.3390/polym13162684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/23/2021] [Accepted: 07/29/2021] [Indexed: 12/23/2022] Open
Abstract
Orthopaedic implants and temporary osteosynthesis devices are commonly based on Titanium (Ti). For short-term devices, cell-material contact should be restricted for easy removal after bone healing. This could be achieved with anti-adhesive plasma-fluorocarbon-polymer (PFP) films created by low-temperature plasma processes. Two different PFP thin film deposition techniques, microwave (MW) and radiofrequency (RF) discharge plasma, were applied to receive smooth, hydrophobic surfaces with octafluoropropane (C3F8) or hexafluorohexane (C6F6) as precursors. This study aimed at examining the immunological local tissue reactions after simultaneous intramuscular implantation of four different Ti samples, designated as MW-C3F8, MW-C6F6, RF-C3F8 and Ti-controls, in rats. A differentiated morphometric evaluation of the inflammatory reaction was conducted by immunohistochemical staining of CD68+ macrophages, CD163+ macrophages, MHC class II-positive cells, T lymphocytes, CD25+ regulatory T lymphocytes, NK cells and nestin-positive cells in cryosections of surrounding peri-implant tissue. Tissue samples were obtained on days 7, 14 and 56 for investigating the acute and chronical inflammation (n = 8 rats/group). Implants with a radiofrequency discharge plasma (RF-C3F8) coating exhibited a favorable short- and long-term immune/inflammatory response comparable to Ti-controls. This was also demonstrated by the significant decrease in pro-inflammatory CD68+ macrophages, possibly downregulated by significantly increasing regulatory T lymphocytes.
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Affiliation(s)
- Charlotte Koppe
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Andreas Hoene
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Uwe Walschus
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Birgit Finke
- Leibniz Institute for Plasma Science and Technology (INP), 17487 Greifswald, Germany; (B.F.); (H.T.)
| | - Holger Testrich
- Leibniz Institute for Plasma Science and Technology (INP), 17487 Greifswald, Germany; (B.F.); (H.T.)
| | - Christopher Pohl
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Nico Brandt
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Maciej Patrzyk
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
| | - Jürgen Meichsner
- Institute of Physics, University of Greifswald, 17487 Greifswald, Germany;
| | - Barbara Nebe
- Department of Cell Biology, University Medical Center Rostock, 18057 Rostock, Germany;
| | - Michael Schlosser
- Department of General Surgery, Visceral, Thoracic and Vascular Surgery, University Medical Center Greifswald, 17487 Greifswald, Germany; (C.K.); (A.H.); (U.W.); (C.P.); (N.B.); (M.P.)
- Correspondence: ; Tel.: +49-3834-8680422
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6
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Helmholz H, Will O, Penate-Medina T, Humbert J, Damm T, Luthringer-Feyerabend B, Willumeit-Römer R, Glüer CC, Penate-Medina O. Tissue responses after implantation of biodegradable Mg alloys evaluated by multimodality 3D micro-bioimaging in vivo. J Biomed Mater Res A 2021; 109:1521-1529. [PMID: 33590952 DOI: 10.1002/jbm.a.37148] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2020] [Revised: 12/07/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022]
Abstract
The local response of tissue triggered by implantation of degradable magnesium-based implant materials was investigated in vivo in a murine model. Pins (5.0 mm length by 0.5 mm diameter) made of Mg, Mg-10Gd, and Ti were implanted in the leg muscle tissue of C57Bl/6N mice (n = 6). Implantation was generally well tolerated as documented by only a mild short term increase in a multidimensional scoring index. Lack of difference between the groups indicated that the response was systemic and surgery related rather than material dependent. Longitudinal in vivo monitoring utilizing micro-computed tomography over 42 days demonstrated the highest and most heterogeneous degradation for Mg-10Gd. Elemental imaging of the explants by micro X-ray fluorescence spectrometry showed a dense calcium-phosphate-containing degradation layer. In order to monitor resulting surgery induced and/or implant material associated local cell stress, sphingomyelin based liposomes containing indocyanine green were administered. An initial increase in fluorescent signals (3-7 days after implantation) indicating cell stress at the site of the implantation was measured by in vivo fluorescent molecular tomography. The signal decreased until the 42nd day for all materials. These findings demonstrate that Mg based implants are well tolerated causing only mild and short term adverse reactions.
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Affiliation(s)
- Heike Helmholz
- Department Biological Characterization, Helmholtz-Center Geesthacht Institute for Material and Coastal Research; Institute of Materials Research, Division of Metallic Biomaterials, Geesthacht, Germany
| | - Olga Will
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Tuula Penate-Medina
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Jana Humbert
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Timo Damm
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Berengere Luthringer-Feyerabend
- Department Biological Characterization, Helmholtz-Center Geesthacht Institute for Material and Coastal Research; Institute of Materials Research, Division of Metallic Biomaterials, Geesthacht, Germany
| | - Regine Willumeit-Römer
- Department Biological Characterization, Helmholtz-Center Geesthacht Institute for Material and Coastal Research; Institute of Materials Research, Division of Metallic Biomaterials, Geesthacht, Germany
| | - Claus-Christian Glüer
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
| | - Oula Penate-Medina
- Section Biomedical Imaging and Molecular Imaging, North Competence Center, Department of Radiology and Neuroradiology, Christian-Albrechts-Universität zu Kiel, Kiel, Germany
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Wang J, Chen X, Yang X, Guo B, Li D, Zhu X, Zhang X. Positive role of calcium phosphate ceramics regulated inflammation in the osteogenic differentiation of mesenchymal stem cells. J Biomed Mater Res A 2020; 108:1305-1320. [PMID: 32064734 DOI: 10.1002/jbm.a.36903] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 02/09/2020] [Accepted: 02/12/2020] [Indexed: 02/05/2023]
Abstract
Recently, researches have confirmed the crucial role of inflammatory response in Ca-P ceramic-induced osteogenesis, however, the underlying mechanism has not yet been fully understood. In this study, BCP and β-TCP ceramics were used as material models to investigate the effect of physicochemical properties on inflammatory response in vitro. The results showed that BCP and β-TCP could support macrophages attachment, proliferation, and spreading favorably, as well as promote gene expressions of inflammatory related cytokines (IL-1, IL-6, MCP-1, and TNF-α) and growth factors (TGF-β, FGF, PDGF, VEGF, IGF, and EGF). BCP showed a facilitating function on the gene expressions earlier than β-TCP. Further coculture experiments performed in vitro demonstrated that the CMs containing various increased cytokines for macrophages pre-culture could significantly promote MSCs osteogenic differentiation, which was confirmed by the gene expressions of osteogenic specific markers and the intracellular OCN product accumulation under the stimulation of BCP and β-TCP ceramics. Further evidence was found from the formation of mineralized nodules in BCM and TCM. In addition, this study showed a concise relationship between Ca-P ceramic induced inflammation and its osteoinductivity that the increased cytokines and growth factors from macrophages could promote MSCs osteogenic differentiation.
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Affiliation(s)
- Jing Wang
- School of Life Sciences, Northwestern Polytechnical University, Xi'an, China.,National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Xuening Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Bo Guo
- Department of Ophthalmology, West China Hospital of Sichuan University, Chengdu, China
| | - Danyang Li
- Institute of Pharmaceutical Science, King's College London, London, UK
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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Chen X, Wang M, Chen F, Wang J, Li X, Liang J, Fan Y, Xiao Y, Zhang X. Correlations between macrophage polarization and osteoinduction of porous calcium phosphate ceramics. Acta Biomater 2020; 103:318-332. [PMID: 31857257 DOI: 10.1016/j.actbio.2019.12.019] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 12/09/2019] [Accepted: 12/13/2019] [Indexed: 01/08/2023]
Abstract
The host immune response is critical for in situ osteogenesis, but correlations between local inflammatory reactions and biomaterial osteoinduction are still poorly understood. This study used a murine intramuscular implantation model to demonstrate that calcium phosphate ceramics with different phase compositions exhibited divergent osteoinductivities. The osteoinductive potential of each ceramic was closely associated with the immunomodulatory capacity of the material, and especially with the regulation of macrophage polarization and functional status. Biphasic calcium phosphate (BCP) ceramics with superior osteoinductive potential enhanced the fraction of CD206+ M2 macrophages, up-regulated expression of M2 phenotypic markers in vitro, and increased the ARG+ M2 population in vivo. This suggested that BCP ceramics could ameliorate long-term inflammation and build a pro-osteogenic microenvironment. However, β-tricalcium phosphate (β-TCP) ceramics with no obvious osteoinductivity increased the fraction of CCR7+ M1 macrophages, promoted the secretion of M1 phenotypic markers in vitro, and maintained a high proportion of iNOS+ M1 macrophages in vivo. It indicated that β-TCP ceramics could exacerbate inflammation and inhibit ectopic bone formation. Hydroxyapatite ceramics with an intermediate osteoinductivity exhibited a moderate amount of both M1 and M2 macrophages. These findings highlight the critical role of macrophage polarization in biomaterial-dependent osteoinduction, which not only deepens our understanding of osteoinductive mechanisms but also provides a strategy to design bone substitutes by endowing materials with the proper immunomodulatory abilities to achieve the desired clinic performance. STATEMENT OF SIGNIFICANCE: Calcium phosphate (CaP) ceramics with osteoinductive capacities are able to induce ectopic bone formation in non-osseous sites. However, its underlying mechanism is largely unknown. Previous studies have demonstrated an indispensable role of macrophages in osteogenesis, inspiring us that local inflammatory reaction may affect material-dependent osteoinduction. This study indicated that CaP ceramics with different phase composition could present divergent osteoinductive capacities through modulating polarization and functional status of macrophages, as biphasic calcium phosphate with potent osteoinductivity ameliorated long-term inflammation and induced a healing-associated M2 phenotype to initiate bone formation. These findings not only get an insight into the mechanism of CaP-involved osteoinduction, but also help the design of tissue-inducing implants by endowing biomaterials with proper immunomodulatory ability.
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Affiliation(s)
- Xuening Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Menglu Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Fuying Chen
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Jing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Xiangfeng Li
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Jie Liang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China.
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Yumei Xiao
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China.
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
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Su Y, Cockerill I, Zheng Y, Tang L, Qin YX, Zhu D. Biofunctionalization of metallic implants by calcium phosphate coatings. Bioact Mater 2019; 4:196-206. [PMID: 31193406 PMCID: PMC6529680 DOI: 10.1016/j.bioactmat.2019.05.001] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 04/26/2019] [Accepted: 05/14/2019] [Indexed: 01/07/2023] Open
Abstract
Metallic materials have been extensively applied in clinical practice due to their unique mechanical properties and durability. Recent years have witnessed broad interests and advances on surface functionalization of metallic implants for high-performance biofunctions. Calcium phosphates (CaPs) are the major inorganic component of bone tissues, and thus owning inherent biocompatibility and osseointegration properties. As such, they have been widely used in clinical orthopedics and dentistry. The new emergence of surface functionalization on metallic implants with CaP coatings shows promise for a combination of mechanical properties from metals and various biofunctions from CaPs. This review provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings. We first glance over different types of CaPs with their coating methods and in vitro and in vivo performances, and then give insight into the representative biofunctions, i.e. osteointegration, corrosion resistance and biodegradation control, and antibacterial property, provided by CaP coatings for metallic implant materials.
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Affiliation(s)
- Yingchao Su
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Irsalan Cockerill
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
| | - Yufeng Zheng
- Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China
| | - Liping Tang
- Department of Bioengineering, University of Texas at Arlington, Arlington, TX, USA
| | - Yi-Xian Qin
- Department of Biomedical Engineering, Stony Brook University, Stony Brook, NY, USA
| | - Donghui Zhu
- Department of Biomedical Engineering, University of North Texas, Denton, TX, USA
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10
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Zhu Y, Jiang P, Luo B, Lan F, He J, Wu Y. Dynamic protein corona influences immune-modulating osteogenesis in magnetic nanoparticle (MNP)-infiltrated bone regeneration scaffolds in vivo. NANOSCALE 2019; 11:6817-6827. [PMID: 30912535 DOI: 10.1039/c8nr08614a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
An inflammatory reaction initiates fracture healing and directly influences the osteoinductive effect of the magnetic hydroxyapatite (MHA) scaffold, but the underlying mechanism is yet to be elucidated. Protein corona as a real biological identity of a biomaterial significantly affects the biological function of the bone regenerative scaffold. Hence, we developed a simple and effective in vivo dynamic model for the protein corona of MHA scaffolds to predict the correlation between the inflammatory reaction and bone wound healing, as well as the underlying mechanism governing such a process. Certain proteins including proteins related to the immune response and inflammation, bone and wound healing, extracellular matrix, cell behavior, and signaling increased in the protein corona of the magnetic nanoparticle (MNP)-infiltrated scaffolds in a time-dependent manner. Moreover, the enriched proteins related to the immune response and inflammation adsorbed on the MHA scaffolds correlated well with the proteins that significantly enhanced bone wound healing, as suggested by the same variation tendency of the proteins related to bone and wound healing, and immune response and inflammation. The presence of MNPs suppressed the chronic inflammatory responses and highly promoted the acute inflammatory responses. More importantly, the activation of the acute inflammatory responses led to the recruitment of immune cells, remodeling of the extracellular matrix and even the acceleration of bone healing. The bone repair in vivo model and inflammatory cytokine in vitro model results further corroborated the critical involvement of inflammatory reaction in enhancing bone wound healing. This opens up the great potential of protein corona formation to understand the complicated mechanisms involved in immune-modulated bone wound healing.
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Affiliation(s)
- Yue Zhu
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610064, P.R. China.
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11
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Effect of the Chemical Composition of Simulated Body Fluids on Aerogel-Based Bioactive Composites. JOURNAL OF COMPOSITES SCIENCE 2017. [DOI: 10.3390/jcs1020015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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A Cell-Adhesive Plasma Polymerized Allylamine Coating Reduces the In Vivo Inflammatory Response Induced by Ti6Al4V Modified with Plasma Immersion Ion Implantation of Copper. J Funct Biomater 2017; 8:jfb8030030. [PMID: 28726761 PMCID: PMC5618281 DOI: 10.3390/jfb8030030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2017] [Revised: 07/13/2017] [Accepted: 07/17/2017] [Indexed: 01/16/2023] Open
Abstract
Copper (Cu) could be suitable to create anti-infective implants based on Titanium (Ti), for example by incorporating Cu into the implant surface using plasma immersion ion implantation (Cu-PIII). The cytotoxicity of Cu might be circumvented by an additional cell-adhesive plasma polymerized allylamine film (PPAAm). Thus, this study aimed to examine in vivo local inflammatory reactions for Ti6Al4V implants treated with Cu-PIII (Ti-Cu), alone or with an additional PPAAm film (Ti-Cu-PPAAm), compared to untreated implants (Ti). Successful Cu-PIII and PPAAm treatment was confirmed with X-ray Photoelectron Spectroscopy. Storage of Ti-Cu and Ti-Cu-PPAAm samples in double-distilled water for five days revealed a reduction of Cu release by PPAAm. Subsequently, Ti, Ti-Cu and Ti-Cu-PPAAm samples were simultaneously implanted into the neck musculature of 24 rats. After 7, 14 and 56 days, peri-implant tissue was retrieved from 8 rats/day for morphometric immunohistochemistry of different inflammatory cells. On day 56, Ti-Cu induced significantly stronger reactions compared to Ti (tissue macrophages, antigen-presenting cells, T lymphocytes) and to Ti-Cu-PPAAm (tissue macrophages, T lymphocytes, mast cells). The response for Ti-Cu-PPAAm was comparable with Ti. In conclusion, PPAAm reduced the inflammatory reactions caused by Cu-PIII. Combining both plasma processes could be useful to create antibacterial and tissue compatible Ti-based implants.
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13
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Chen X, Wang J, Wang J, Zhu X, Yang X, Fan Y, Zhang X. The positive role of macrophage secretion stimulated by BCP ceramic in the ceramic-induced osteogenic differentiation of pre-osteoblasts via Smad-related signaling pathways. RSC Adv 2016. [DOI: 10.1039/c6ra23362g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The present study demonstrated that material-mediated immune responses, particularly macrophage secretion might play a vital role in material-induced osteogenesis.
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Affiliation(s)
- Xuening Chen
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Jing Wang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Jing Wang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xiangdong Zhu
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xiao Yang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Yujiang Fan
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
| | - Xingdong Zhang
- National Engineering Research Center for Biomaterials
- Sichuan University
- Chengdu
- China
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14
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Calcium orthophosphate deposits: Preparation, properties and biomedical applications. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 55:272-326. [PMID: 26117762 DOI: 10.1016/j.msec.2015.05.033] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2014] [Revised: 03/21/2015] [Accepted: 05/08/2015] [Indexed: 01/12/2023]
Abstract
Since various interactions among cells, surrounding tissues and implanted biomaterials always occur at their interfaces, the surface properties of potential implants appear to be of paramount importance for the clinical success. In view of the fact that a limited amount of materials appear to be tolerated by living organisms, a special discipline called surface engineering was developed to initiate the desirable changes to the exterior properties of various materials but still maintaining their useful bulk performances. In 1975, this approach resulted in the introduction of a special class of artificial bone grafts, composed of various mechanically stable (consequently, suitable for load bearing applications) implantable biomaterials and/or bio-devices covered by calcium orthophosphates (CaPO4) to both improve biocompatibility and provide an adequate bonding to the adjacent bones. Over 5000 publications on this topic were published since then. Therefore, a thorough analysis of the available literature has been performed and about 50 (this number is doubled, if all possible modifications are counted) deposition techniques of CaPO4 have been revealed, systematized and described. These CaPO4 deposits (coatings, films and layers) used to improve the surface properties of various types of artificial implants are the topic of this review.
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15
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Acute and chronic local inflammatory reaction after implantation of different extracellular porcine dermis collagen matrices in rats. BIOMED RESEARCH INTERNATIONAL 2015; 2015:938059. [PMID: 25648958 PMCID: PMC4310316 DOI: 10.1155/2015/938059] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 10/08/2014] [Accepted: 10/14/2014] [Indexed: 02/04/2023]
Abstract
Two cross-linked acellular porcine dermal collagen matrices (Permacol and NRX) were implanted into rats and the acute and chronic local inflammatory tissue reactions were investigated after 7, 14, 28, and 112 days. Both membranes were stable in vivo for up to 112 days. All investigated immune cell populations (CD68+ macrophages, CD163+ macrophages, T lymphocytes, MHC class II positive cells, mast cells, and NK cells) were present. Their amount decreased significantly over time compared to day 7 after implantation. A change from an acute to a chronic inflammation and an associated shift from proinflammatory M1-like to anti-inflammatory M2-like macrophages were observed. In the early phase there was a significant correlation of T cells to CD68+ (M1-like) macrophages, whereas in the chronic phase T lymphocytes were positively correlated with CD163+ (M2-like) macrophages. The material NRX showed an enhanced inflammatory reaction in comparison to Permacol possibly caused by material characteristics such as a twofold higher thickness of the membrane, roughness, and water absorption capacity. Nevertheless, a more pronounced regenerative process as, for example, indicated by nestin expression demonstrated its possible suitability for applications as wound repair material.
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16
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Liu XH, Wu L, Ai HJ, Han Y, Hu Y. Cytocompatibility and early osseointegration of nanoTiO2-modified Ti-24 Nb-4 Zr-7.9 Sn surfaces. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 48:256-62. [PMID: 25579921 DOI: 10.1016/j.msec.2014.12.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2014] [Revised: 10/29/2014] [Accepted: 12/04/2014] [Indexed: 12/27/2022]
Abstract
This study aimed to evaluate the cytocompatibility and early osseointegration of Ti-24 Nb-4 Zr-7.9 Sn (Ti-2448) surfaces that were modified with a nanoscale TiO2 coating. The coating was fabricated using a hydrothermal synthesis method to generate nanoTiO2/Ti-2448. The surface characteristics of the samples were evaluated using scanning electron microscopy (SEM), energy dispersive spectrometry (EDS) and X-ray diffraction (XRD). The cytotoxicity of the fabricated nanoTiO2/Ti-2448 was determined using MTT assays. The proliferation and alkaline phosphatase (ALP) activity of MC3T3-E1 osteoblasts cultured on nanoTiO2/Ti-2448 were compared with those cultured on Ti-2448. Disk-shaped implants were placed in Wistar rats. The histological sections were stained with haematoxylin and eosin (HE), and the histocompatibility was analysed at 4 and 12weeks post-implantation. Cylindrical implants were embedded in Japanese white rabbits, and the histological sections were stained with HE and anti-TGF-β1 to evaluate the histocompatibility and early osseointegration at 4, 12 and 26weeks post-implantation. NanoTiO2/Ti-2448 exhibited a rougher surface than did Ti-2448. NanoTiO2/Ti-2448 was determined to be non-cytotoxic. More osteoblasts and higher ALP activity were observed for nanoTiO2/Ti-2448 than Ti-2448 (p<0.05). Few inflammatory cells were detected around nanoTiO2/Ti-2448, and the expression of TGF-β1 on nanoTiO2/Ti-2448 peaked at earlier time than that on Ti-2448. The results indicate that the cytocompatibility and early osseointegration were enhanced by the nanoTiO2 coating.
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Affiliation(s)
- X H Liu
- Department of Prosthodontics, China Medical University School of Stomatology, Shenyang, People's Republic of China
| | - L Wu
- Department of Prosthodontics, China Medical University School of Stomatology, Shenyang, People's Republic of China.
| | - H J Ai
- Department of Prosthodontics, China Medical University School of Stomatology, Shenyang, People's Republic of China
| | - Y Han
- State Key laboratory for Mechanical Behaviour of Materials, Xi'an Jiaotong University, Xi'an, People's Republic of China
| | - Y Hu
- Department of Prosthodontics, China Medical University School of Stomatology, Shenyang, People's Republic of China
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17
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Wu C, Chen Z, Yi D, Chang J, Xiao Y. Multidirectional effects of Sr-, Mg-, and Si-containing bioceramic coatings with high bonding strength on inflammation, osteoclastogenesis, and osteogenesis. ACS APPLIED MATERIALS & INTERFACES 2014; 6:4264-76. [PMID: 24598408 DOI: 10.1021/am4060035] [Citation(s) in RCA: 84] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Ideal coating materials for implants should be able to induce excellent osseointegration, which requires several important parameters, such as good bonding strength, limited inflammatory reaction, and balanced osteoclastogenesis and osteogenesis, to gain well-functioning coated implants with long-term life span after implantation. Bioactive elements, like Sr, Mg, and Si, have been found to play important roles in regulating the biological responses. It is of great interest to combine bioactive elements for developing bioactive coatings on Ti-6Al-4 V orthopedic implants to elicit multidirectional effects on the osseointegration. In this study, Sr-, Mg-, and Si-containing bioactive Sr2MgSi2O7 (SMS) ceramic coatings on Ti-6Al-4 V were successfully prepared by the plasma-spray coating method. The prepared SMS coatings have significantly higher bonding strength (∼37 MPa) than conventional pure hydroxyapatite (HA) coatings (mostly in the range of 15-25 MPa). It was also found that the prepared SMS coatings switch the macrophage phenotype into M2 extreme, inhibiting the inflammatory reaction via the inhibition of Wnt5A/Ca(2+) and Toll-like receptor (TLR) pathways of macrophages. In addition, the osteoclastic activities were also inhibited by SMS coatings. The expression of osteoclastogenesis-related genes (RANKL and MCSF) in bone-marrow-derived mesenchymal cells (BMSCs) with the involvement of macrophages was decreased, whereas OPG expression was enhanced on SMS coatings compared to HA coatings, indicating that SMS coatings also downregulated the osteoclastogenesis. However, the osteogenic differentiation of BMSCs with the involvement of macrophages was comparable between SMS and HA coatings. Therefore, the prepared SMS coatings showed multidirectional effects, such as improving bonding strength, reducing inflammatory reaction, and downregulating osteoclastic activities, but maintaining a comparable osteogenesis, as compared with HA coatings. The combination of bioactive elements of Sr, Mg, and Si into bioceramic coatings can be a promising method to develop bioactive implants with multifunctional properties for orthopedic application.
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Affiliation(s)
- Chengtie Wu
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, People's Republic of China
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18
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Chen Z, Yi D, Zheng X, Chang J, Wu C, Xiao Y. Nutrient element-based bioceramic coatings on titanium alloy stimulating osteogenesis by inducing beneficial osteoimmmunomodulation. J Mater Chem B 2014; 2:6030-6043. [DOI: 10.1039/c4tb00837e] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nutrient element-based Sr2ZnSi2O7 coatings induce favorable osteoimmunomodulation. Material chemistry of Sr2ZnSi2O7 coating modulates the immune environment to induce osteogenic differentiation of BMSCs by activating BMP2 signalling pathway.
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Affiliation(s)
- Zetao Chen
- Institute of Health and Biomedical Innovation
- Queensland University of Technology
- Brisbane
- Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine
| | - Deliang Yi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
- Shanghai Institute of Ceramics
- Chinese Academy of Sciences
- Shanghai
- People's Republic of China
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials
- Chinese Academy of Science
- Shanghai
- People's Republic of China
| | - Jiang Chang
- Australia-China Centre for Tissue Engineering and Regenerative Medicine
- Queensland University of Technology
- Brisbane
- Australia
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
| | - Chengtie Wu
- Australia-China Centre for Tissue Engineering and Regenerative Medicine
- Queensland University of Technology
- Brisbane
- Australia
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure
| | - Yin Xiao
- Institute of Health and Biomedical Innovation
- Queensland University of Technology
- Brisbane
- Australia
- Australia-China Centre for Tissue Engineering and Regenerative Medicine
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19
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Hoene A, Prinz C, Walschus U, Lucke S, Patrzyk M, Wilhelm L, Neumann HG, Schlosser M. In vivo evaluation of copper release and acute local tissue reactions after implantation of copper-coated titanium implants in rats. Biomed Mater 2013; 8:035009. [PMID: 23598370 DOI: 10.1088/1748-6041/8/3/035009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Copper (Cu) based coatings can reduce infections for titanium (Ti) implants. However, Cu is also cytotoxic. To examine the balance of antibacterial versus adverse tissue effects, this study aimed at evaluating a Cu coating regarding in vivo Cu release and local inflammatory reactions for 72 h. TiAl6V4 plates received either plasma electrolytic oxidation only (Ti), or an additional galvanic Cu deposition (Ti-Cu). No Staphylococcus aureus were found in vitro on Ti-Cu after 24 h. Following simultaneous intramuscular implantation of two Ti and two Ti-Cu plates into nine rats, serum Cu was elevated until 48 h and residual Cu on explanted samples reduced accordingly after 48 h. Total and tissue macrophages around implants increased until 72 h for both series, and were increased for Ti-Cu. As numbers of total and tissue macrophages were comparable, macrophages were probably tissue-derived. MHC-class-II-positive cells increased for Ti-Cu only. T-lymphocytes had considerably lower numbers than macrophages, did not increase or differ between both series, and thus had minor importance. Tissue reactions increased beyond Cu release, indicating effects of either surface-bound Cu or more likely the implants themselves. Altogether, Ti-Cu samples possessed antibacterial effectiveness in vitro, released measurable Cu amounts in vivo and caused a moderately increased local inflammatory response, demonstrating anti-infective potential of Cu coatings.
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Affiliation(s)
- Andreas Hoene
- Department of Surgery, Ernst Moritz Arndt University Greifswald, Ferdinand-Sauerbruch-Str., D-17489 Greifswald, Germany
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20
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Hoene A, Patrzyk M, Walschus U, Straňák V, Hippler R, Testrich H, Meichsner J, Finke B, Rebl H, Nebe B, Zietz C, Bader R, Podbielski A, Schlosser M. In vivo examination of the local inflammatory response after implantation of Ti6Al4V samples with a combined low-temperature plasma treatment using pulsed magnetron sputtering of copper and plasma-polymerized ethylenediamine. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2013; 24:761-771. [PMID: 23314622 DOI: 10.1007/s10856-012-4839-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 12/12/2012] [Indexed: 06/01/2023]
Abstract
Copper (Cu) could serve as antibacterial coating for Ti6Al4V implants. An additional cell-adhesive layer might compensate Cu cytotoxicity. This study aimed at in vitro and in vivo evaluation of low-temperature plasma treatment of Ti6Al4V plates with Ti/Cu magnetron sputtering (Ti6Al4V-Ti/Cu), plasma-polymerized ethylenediamine (Ti6Al4V-PPEDA), or both (Ti6Al4V-Ti/Cu-PPEDA). Ti6Al4V-Ti/Cu and Ti6Al4V-Ti/Cu-PPEDA had comparable in vitro Cu release and antibacterial effectiveness. Following intramuscular implantation of Ti6Al4V-Ti/Cu, Ti6Al4V-PPEDA, Ti6Al4V-Ti/Cu-PPEDA and Ti6Al4V controls for 7, 14 and 56 days with 8 rats/day, peri-implant tissue was immunohistochemically examined for different inflammatory cells. Ti6Al4V-PPEDA had more mast cells and NK cells than Ti6Al4V, and more tissue macrophages, T lymphocytes, mast cells and NK cells than Ti6Al4V-Ti/Cu-PPEDA. Ti6Al4V-Ti/Cu had more mast cells than Ti6Al4V and Ti6Al4V-Ti/Cu-PPEDA. Results indicate that PPEDA-mediated cell adhesion counteracted Cu cytotoxicity. Ti6Al4V-Ti/Cu-PPEDA differed from Ti6Al4V only for mast cells on day 56. Altogether, implants with both plasma treatments had antibacterial properties and did not increase inflammatory reactions.
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Affiliation(s)
- Andreas Hoene
- Department of Surgery, University of Greifswald, Greifswald, Germany
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21
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Rychly J. Biointerface Technology. Regen Med 2013. [DOI: 10.1007/978-94-007-5690-8_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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22
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Dorozhkin SV. Calcium orthophosphate coatings, films and layers. Prog Biomater 2012; 1:1. [PMID: 29470670 PMCID: PMC5120666 DOI: 10.1186/2194-0517-1-1] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Accepted: 06/14/2012] [Indexed: 11/16/2022] Open
Abstract
In surgical disciplines, where bones have to be repaired, augmented or improved, bone substitutes are essential. Therefore, an interest has dramatically increased in application of synthetic bone grafts. As various interactions among cells, surrounding tissues and implanted biomaterials always occur at the interfaces, the surface properties of the implants are of the paramount importance in determining both the biological response to implants and the material response to the physiological conditions. Hence, a surface engineering is aimed to modify both the biomaterials, themselves, and biological responses through introducing desirable changes to the surface properties of the implants but still maintaining their bulk mechanical properties. To fulfill these requirements, a special class of artificial bone grafts has been introduced in 1976. It is composed of various mechanically stable (therefore, suitable for load bearing applications) biomaterials and/or bio-devices with calcium orthophosphate coatings, films and layers on their surfaces to both improve interactions with the surrounding tissues and provide an adequate bonding to bones. Many production techniques of calcium orthophosphate coatings, films and layers have been already invented and new promising techniques are continuously investigated. These specialized coatings, films and layers used to improve the surface properties of various types of artificial implants are the topic of this review.
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Kochanowski A, Hoene A, Patrzyk M, Walschus U, Finke B, Luthringer B, Feyerabend F, Willumeit R, Lucke S, Schlosser M. Examination of the inflammatory response following implantation of titanium plates coated with phospholipids in rats. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2011; 22:1015-1026. [PMID: 21455678 DOI: 10.1007/s10856-011-4287-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2010] [Accepted: 03/10/2011] [Indexed: 05/30/2023]
Abstract
Implantation of biomaterials like titanium (Ti) causes inflammatory reactions possibly affecting implant functionality. Surface modifications could improve biocompatibility and functionality of implants. Biomembrane-derived phospholipids might be useful as implant coating due to their biomimetic properties. In vitro studies demonstrated beneficial effects for 2-oleoyl-1-palmitoyl-sn-glycero-3-phosphoethanolamin (POPE) as coating regarding interactions with cells and bacteria. Therefore, this in vivo study aimed at examining local inflammatory reactions after implantation of POPE-coated Ti plates. Ti implants with POPE attached non-covalently or covalent via octadecylphosphonic acid (OPA), with OPA alone and uncoated controls were simultaneously implanted intramuscularly in rats for 7, 14 and 56 days. The peri-implant tissue was quantitatively analyzed by immunohistochemistry for total macrophages, tissue macrophages, T cells, antigen-presenting cells and proliferating cells. Overall, both POPE-coated series were comparable to the controls. Furthermore, no differences were found between POPE coating on a covalently linked OPA monolayer and POPE coating dried from solution. Together with earlier in vitro results, this demonstrates the potential of phospholipids for implant surface modification.
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Affiliation(s)
- Alexandra Kochanowski
- Department of Medical Biochemistry and Molecular Biology, Research Group of Predictive Diagnostics, Ernst Moritz Arndt University of Greifswald, Greifswalder Str 11c, 17495 Karlsburg, Germany
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Rychly J. Biointerface Technology. Regen Med 2011. [DOI: 10.1007/978-90-481-9075-1_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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25
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WALSCHUS U, HOENE A, KOCHANOWSKI A, NEUKIRCH B, PATRZYK M, WILHELM L, SCHRÖDER K, SCHLOSSER M. Quantitative immunohistochemical examination of the local cellular reactions following implantation of biomaterials. J Microsc 2010; 242:94-9. [DOI: 10.1111/j.1365-2818.2010.03445.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Hoene A, Walschus U, Patrzyk M, Finke B, Lucke S, Nebe B, Schroeder K, Ohl A, Schlosser M. In vivo investigation of the inflammatory response against allylamine plasma polymer coated titanium implants in a rat model. Acta Biomater 2010; 6:676-83. [PMID: 19751851 DOI: 10.1016/j.actbio.2009.09.003] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2009] [Revised: 08/10/2009] [Accepted: 09/04/2009] [Indexed: 10/20/2022]
Abstract
Titanium (Ti) is an established biomaterial for bone replacement. However, facilitation of osteoblast attachment by surface modification with chemical groups could improve the implant performance. Therefore, this study aimed to evaluate the effect of a plasma polymerized allylamine (PPAAm) layer on the local inflammation in a rat model. Three series (RM76AB, RM78AB, RM77AB) of PPAAm-treated Ti plates were prepared using different plasma conditions. Twelve male LEW.1A rats received one plate of each series and one uncoated control plate implanted into the back musculature. After 7, 14 and 56 days, four rats were euthanized to remove the implants with surrounding tissue. Total monocytes/macrophages, tissue macrophages, T-cells and MHC-class-II-positive cells were morphometrically counted. On day 14, the macrophage/monocyte number was significantly higher for the controls than for the PPAAm samples. On day 56, the RM76AB and RM78AB samples had significantly lower numbers than RM77AB and the controls. The same was found for the tissue macrophages. No change over time and no differences between the implants were found for the T-cells. For the number of MHC-class-II-positive cells, a significant decrease was found only for the RM78AB implants between day 14 and day 56. Physico-chemical analysis of the PPAAm implants revealed that the RM77AB implants had the lowest water absorption, the highest nitrogen loss and the lowest oxygen uptake after sonication. These results demonstrate that the PPAAm samples and the controls were comparable regarding local inflammation, and that different plasma conditions lead to variations in the material properties which influence the tissue reaction.
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Abstract
A crucial factor for in-growth of metallic implants in the bone stock is the rapid cellular acceptance whilst prevention of bacterial adhesion on the surface. Such contradictorily adhesion events could be triggered by surface properties. There already exists fundamental knowledge about the influence of physicochemical surface properties like roughness, titanium dioxide modifications, cleanness, and (mainly ceramic) coatings on cell and microbial behavior in vitro and in vivo.
The titanium surface can be equipped with antimicrobial properties by plasma-based copper implantation, which allows the release and generation of small concentrations of copper ions during contact with water-based biological liquids.
Additionally, the titanium surface was equipped with amino groups by the deposition of an ultrathin plasma polymer. This coating on the one hand does not significantly reduce the generation of copper ions, and on the other hand improves the adhesion and spreading of osteoblast cells.
The process development was accompanied by physicochemical surface analyses like XPS, FTIR, contact angle, SEM, and AFM. Very thin modified layers were created, which are resistant to hydrolysis and delamination. These titanium surface functionalizations were found to have either an antimicrobial activity or cell-adhesive properties. Intramuscular implantation of titanium samples coated with the cell-adhesive plasma polymer in rats revealed a reduced inflammation reaction compared to uncoated titanium.
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